Microbial Nutrition and Growth
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Nutrition | Process by which chemical substances called nutrients are acquired from the environment and used in cellular activities such as metabolism
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| Essential Nutrient | any substance that must be provided to an organism
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| Macronutrients | required in large quantities and play principal roles in cell structure and metabolism
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| What are the Macronutriends | CHONPS
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| What does Hydrogen do | holds bonds and molecules
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| NH3 role | binds to carbon and forms amino acids which are the building blocks of nucleic acid
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| Micronutrients/Trace Elements | Present in smaller amounts and are involved in enzyme function and maintenance of protein structure
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| What are the environmental influences that influence Microbial Growth | Temperature, Gases, Ph, Osmotic Pressure
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| Cardinal temperature | the range of temperature for the growth of a given microbial species
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| Minimum temperature | the lowest temperature that permits a microbe's continued growth and metabolism; below this temperature its activities are limited
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| Maximum temperature | the highest temperature at which growth and metabolism can proceed before proteins are denatured
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| Optimum temperature | an intermediate between the minimum and the maximum that promotes the fastest rate of growth and metabolism
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| 5 categories of Microbes based on temperature range | psychrophilies, psychrotrophs, mesophiles, thermophies, extreme thermophiles (hyperthermophiles)
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| psychrophiles |
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